tripal/legacy/tripal_phylogeny/theme/templates/tripal_phylogeny_phylogram.tpl.php

<?php
$phylotree = $variables['node']->phylotree;

if ($phylotree->type_id->name != "taxonomy" and $phylotree->has_nodes) {

  if ($phylotree->type_id and $phylotree->type_id->name == 'polypeptide') { ?>
    <p>Phylogenies are essential to any analysis of evolutionary gene
      sequences collected across a group of organisms. A <b>phylogram</b>
      is a phylogenetic tree that has branch spans proportional to the
      amount of character change.
    </p> <?php
  } ?>

  <div id="phylogram">
    <!-- d3js will add svg to this div, and remove the loader gif prefix with / for absolute url --><?php
    $ajax_loader = url(drupal_get_path('module', 'tripal_phylogeny') . '/theme/images/ajax-loader.gif'); ?>
    <img src="<?php print $ajax_loader ?>" class="phylogram-ajax-loader"/>
  </div> <?php
}